Learn about digital signatures, digital IDs, and signature lines to use in Word, Excel, and PowerPoint.

This article explains how you can get or create a digital signature for use in Office documents. To learn more about how to use them in Office documents, see Add or remove a digital signature in Office files.

Insert a graphic of your signature, save it as AutoText, or add a blank signature line to an online or printed document.

Notarization Signatures in Microsoft Word, Microsoft Excel, or Microsoft PowerPoint files, which are time stamped by a secure time-stamp server, under certain circumstances, have the validity of a …

On the Tools menu, click Form Options. Under Category, click Digital Signatures, and then click Enable digital signatures for the entire form.

Note: To add a digital signature, you need a valid certificate from a certificate authority (CA). Workbook-level: You can lock the structure of your workbook by specifying a password. Locking the workbook …

Notarization Signatures in Microsoft Word, Microsoft Excel, or Microsoft PowerPoint files, which are time stamped by a secure time-stamp server, under certain circumstances, have the validity of a …

You can view information about a digital signature, or the certificate that is used to create the digital signature, in Word, PowerPoint, and Excel.

To add a digital signature, you can use a commercial security certificate, or you can create your own. The process that you use to digitally sign a database depends on the database version you are …

A Collect Signatures workflow is a SharePoint products feature that routes a document or form created in Word, Excel, or InfoPath to one or more people for their signature.

You can view information about a digital signature, or the certificate that is used to create the digital signature, in Word, PowerPoint, and Excel. For more information on adding or removing digital …